Particle Oriented Strontium Bismuth Titanate Ceramics Prepared by Using High Magnetic Field and Subsequent Reaction Sintering

Abstract

Particle oriented strontium bismuth titanate ceramics with high density and oriented structure was successfully developed by a novel processing involving a high magnetic field and reaction sintering. The mixed powder of bismuth titanate and strontium titanate were dispersed in slurry and set in high magnetic field. The a,c-axes bismuth titanate particles were oriented to the applied magnetic field in the green compact. The subsequent reaction sintering resulted in the a,b-axes strontium-bismuth titanate ceramics of obtained structure. The microstructure was highly anisotropic and dense.